Question

if 3/2 ,a,3 are in A.p the value of a is​

Answer 1

a - 3/2 = 3-a

= 2a = 3 + 3/2

= 2a = 9/2

a = 9/4

Answer 2

The value of a is 2.25

• 3/2 , a and 3 are in A.P. So they have a constant common difference.
• That means the difference between second and first term = difference between third and second term
• Hence a-3/2 = 3 -a
• Solving this we get 2a = 3+3/2 = 4.5
• from there we get a = 2.25
• Hence the value of a is 2.25